Dynamic and creep and recovery performance of Fe3O4 nanoparticle and carbonyl iron microparticle water-based magnetorheological fluid
| Autor: | Chandra Shekhar Maurya, Chiranjit Sarkar |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Strain (chemistry) Mechanical Engineering 02 engineering and technology Dynamic mechanical analysis 021001 nanoscience & nanotechnology 01 natural sciences Magnetic field Carbonyl iron Creep 0103 physical sciences Magnetorheological fluid General Materials Science Composite material Microparticle 0210 nano-technology Fe3o4 nanoparticles |
| Zdroj: | Journal of Intelligent Material Systems and Structures. 33:743-755 |
| ISSN: | 1530-8138 1045-389X |
| DOI: | 10.1177/1045389x211026379 |
| Popis: | This study investigates dynamic mechanical properties and creep and recovery behaviors of disc-shaped magnetic Fe3O4 nanoparticles with carbonyl iron (CI) flake-shaped microparticles in water-based MR fluid. The experimental study is performed using a parallel plate rheometer. Dynamic performance and creep and recovery behaviors help understand deformation mechanism for its practical applications in MR devices like seismic vibration control, active dampers, earthquake dampers, etc., under applied strain, and stress levels. The oscillatory experiment reveals a transition from viscoelastic-to-viscous behavior at the critical strain of 0.1%. The storage modulus [Formula: see text] of CI/Fe3O4 MR fluid showed a stable plateau region over the small strain area and storage modulus [Formula: see text] independent of strain amplitude. The frequency experiment demonstrated that storage moduli [Formula: see text] exhibit elastic response and stable plateau region over the complete external frequency range, suggesting the distinguished solid-like behavior of the MR fluid. Creep and recovery experiments showed that fluid acts as a linear viscoelastic material at lower stress levels. As the stress levels increase, the contribution of retardation strain and viscous strain decreases, and it acts like nonlinear viscoelastic material. In summary, this work is expected to obtain MR fluid results for application in MR devices under applied strain, frequencies, and constant stress levels. |
| Databáze: | OpenAIRE |
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